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Finding the Fourth Proportional to 17,110.80, 25,666.20 and 15,361.20

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Solution

The fourth proportional to 17,110.80, 25,666.20 and 15,361.20 is: 23,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,110.80 : 25,666.20 = 15,361.20 : x
  2. Step 2: Convert to fraction form
    17,110.80/25,666.20 = 15,361.20/x
  3. Step 3: Cross multiply
    17,110.80x = 25,666.20 × 15,361.20
  4. Step 4: Simplify right side
    17,110.80x = 394,263,631.44
  5. Step 5: Solve for x
    x = 394,263,631.44/17,110.80
  6. Step 6: Final answer
    x = 23,041.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.